Sorry, I'm a total n00b when it comes to custom music. I recently downloaded HuFlungDu's Addmusic and it says to start over with a clean ROM. How dangerous is it, really, to use an unclean one? (My hack is about 10% complete)

And would it be possible to take a clean ROM, add the music to it, then insert my WIP hack into it as an IPS patch? Or am I totally screwed and need to start over if I want custom music?

When I began inserting custom music into my hack, I was starting work on the sixth world. At this point, the hack had several ExGFX files, some custom sprites, a few patches, and, being based on Demo World, a few blocks. I was able to use Romi's AddMusic on that dirty ROM without any issues.

@Alcaro: You can use HuFlungDu's AddMusic on a ROM that used Romi's before. I did that with mine and didn't have problems.

Still, it wouldn't hurt to have a backup in case something does go wrong.

--------------------"Fortunately, I have a delicate lock-picking technique" *blasts doors open*
-Optimus Prime - G1 - Day of the Machines